Inventor · disambiguated record
Kyuhachiro Iwasaki
Also filed as: IWASAKI KYUHACHIRO · JINNAI KOICHIRO
36 granted patents·1,645 citations·filing 1976–2008
98Inventor score
Top patents by PatentIndex Score
36 records- 0198US5610637AInk jet recording methodRICOH KK·Filed 1993·Granted Mar 11, 1997·142 cites·6 claims
- 0298US4990939ABubble jet printer head with improved operational speedRICOH KK·Filed 1989·Granted Feb 5, 1991·179 cites·11 claims
- 0398US4293865AInk-jet recording apparatusRICOH KK·Filed 1979·Granted Oct 6, 1981·102 cites·7 claims
- 0498US4045802AInk ejection printing apparatus comprising automatically actuated ejection orifice capRICOH KK·Filed 1976·Granted Aug 30, 1977·129 cites·15 claims
- 0597US6039425AInk jet recording method and headRICOH KK·Filed 1997·Granted Mar 21, 2000·89 cites·5 claims
- 0697US5877786AInk jet recording method and headRICOH KK·Filed 1996·Granted Mar 2, 1999·85 cites·3 claims
- 0797US5657060AInk jet recording head having means for controlling ink dropletsRICOH KK·Filed 1995·Granted Aug 12, 1997·83 cites·12 claims
- 0897US4178595AInk jet printing apparatus with ink replenishingRICOH KK·Filed 1978·Granted Dec 11, 1979·75 cites·7 claims
- 0996US6568778B1Liquid jet recording apparatus and methodRICOH KK·Filed 2000·Granted May 27, 2003·40 cites·3 claims
- 1096US4228440AInk jet printing apparatusRICOH KK·Filed 1978·Granted Oct 14, 1980·59 cites·7 claims
- 1195US5729257AInk jet recording head with improved ink jettingRICOH KK·Filed 1995·Granted Mar 17, 1998·66 cites·4 claims
- 1295US4673955AInk receptacle for ink jet printerRICOH KK·Filed 1986·Granted Jun 16, 1987·87 cites·15 claims
- 1394US4588998AInk jet head having curved inkRICOH KK·Filed 1984·Granted May 13, 1986·62 cites·11 claims
- 1493US6227639B1Ink jet recording method and headRICOH KK·Filed 1998·Granted May 8, 2001·49 cites·2 claims
- 1593US6193348B1On demand type ink jet recording apparatus and methodRICOH KK·Filed 1998·Granted Feb 27, 2001·52 cites·3 claims
- 1690US4231047AInk-jet printing method and device thereforRICOH KK·Filed 1979·Granted Oct 28, 1980·36 cites·8 claims
- 1786US4800398AInk-jet printer with an encased printer head unitRICOH KK·Filed 1987·Granted Jan 24, 1989·40 cites·16 claims
- 1885US4527170AInk jet waste and replenish ink systemRICOH KK·Filed 1983·Granted Jul 2, 1985·30 cites·11 claims
- 1984US4700203AInk jet head for compressing ink to eject drops of inkRICOH KK·Filed 1986·Granted Oct 13, 1987·33 cites·12 claims
- 2083US6789866B2Liquid jet recording apparatus, head and methodRICOH KK·Filed 2003·Granted Sep 14, 2004·12 cites·14 claims
- 2182US4520367AInk jet head assemblyRICOH KK·Filed 1984·Granted May 28, 1985·27 cites·7 claims
- 2280US4364060ANozzle position deviation compensation arrangement for ink jet printing deviceRICOH KK·Filed 1980·Granted Dec 14, 1982·26 cites·1 claims
- 2376US4312005AInk jet printing apparatusRICOH KK·Filed 1980·Granted Jan 19, 1982·20 cites·7 claims
- 2475US4231048AInk jet recording apparatusKODAMA YUTAKA·Filed 1978·Granted Oct 28, 1980·17 cites·13 claims
- 2575US4217595ACharging phase control device for ink jet recording deviceRICOH KK·Filed 1979·Granted Aug 12, 1980·19 cites·7 claims
- 2674US4313123AControllable ink drop velocity type ink-jet printerRICOH KK·Filed 1979·Granted Jan 26, 1982·13 cites·2 claims
- 2772US6991309B2Ink jet recording method and headRICOH KK·Filed 2004·Granted Jan 31, 2006·6 cites·7 claims
- 2872US4288797AVariable-charge type ink-jet printerRICOH KK·Filed 1979·Granted Sep 8, 1981·14 cites·9 claims
- 2971US4045801AInk ejection head for printerRICOH KK·Filed 1976·Granted Aug 30, 1977·13 cites·8 claims
- 3067US4437101AInk jet printing apparatusRICOH KK·Filed 1982·Granted Mar 13, 1984·14 cites·32 claims
- 3160US4393385AControllable ink drop velocity type ink-jet printerRICOH KK·Filed 1981·Granted Jul 12, 1983·9 cites·1 claims
- 3258US4365255AInk jet printerRICOH KK·Filed 1980·Granted Dec 21, 1982·10 cites·1 claims
- 3357US7533950B2Liquid jet recording apparatusRICOH KK·Filed 2008·Granted May 19, 2009·0 cites·7 claims
- 3455US4290073AInk-jet recording apparatusRICOH KK·Filed 1979·Granted Sep 15, 1981·7 cites·3 claims
- 3553US7347518B2Ink jet recording head configured for ejecting small ink droplets to form high quality imagesRICOH KK·Filed 2005·Granted Mar 25, 2008·0 cites·4 claims
- 3652US7341322B2Liquid jet head, method and apparatus and receiving medium, configured for small ejected liquid dropletsSEKIYA TAKURO·Filed 2005·Granted Mar 11, 2008·0 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →